Tangshan Yuanneng Impamp Exp Trading Co,ltd is a specialized in manufacturing and marketing of bearing sleeves, pins, buffer sleeves and pistons etc. used for engineering machine and auto.We master the tech.know-how and originate lots products and manufacture process, some of it access national patents. Meanwhile, we can optimize the designing according to client’s requirement to intensely improve the economy, usability and stability of products.We possess advanced manufacturing ability and sound inspecting ability. Every process of R